Compilare: user.cpp: In function ‘bool BFS(short int, short int)’: user.cpp:28:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(short i=0;i<Graph[x].size();i++) ^ user.cpp: In function ‘int Flow(short int, short int)’: user.cpp:45:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(short i=0;i<Graph[end].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:71:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%hd%hd%hd%hd",&N,&M,&S,&D); ^ user.cpp:82:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%hd%hd",&X,&Y); ^